#315AB7#315AB7

#315AB7 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.155 H 263.8°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#315AB7
RGB	rgb(49, 90, 183)
HSL	hsl(222, 58%, 45%)
HSV	hsv(222, 73%, 72%)
CMYK	cmyk(73.2%, 50.8%, 0%, 28.2%)
CIE-LAB	lab(40.22, 18.35, -53.45)
CIE-LCH	lch(40.22, 56.51, 288.95°)
OKLab	oklab(49.1% -0.0168 -0.1536)
OKLCH	oklch(49.1% 0.155 263.8)
XYZ	xyz(13.4670, 11.3827, 46.2779)
Luminance	0.1138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#315AB7 #B78E31

analogous

#319DB7 #315AB7 #4B31B7

triadic

#315AB7 #B7315A #5AB731

tetradic

#315AB7 #B7319D #B78E31 #31B74B

square

#315AB7 #B7319D #B78E31 #31B74B

split-complementary

#315AB7 #B74B31 #9DB731

monochromatic

#172B56 #244287 #315AB7 #547AD1 #84A0DE

Accessibility & contrast

On white

6.41

#315AB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#315AB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #315AB7

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##315AB7	#FFFFFF	#000000	##FFFFFF
##315AB7	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2165BA

Deuteranopia (green-blind)

#0059B5

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #315ab7;
/* rgb */ color: rgb(49, 90, 183);
/* oklch */ color: oklch(49.1% 0.155 263.8);

Tailwind

colors: {
  custom: {
    50: '#7b88cd',
    500: '#315ab7',
    950: '#000000',
  },
}

SCSS

$custom: #315ab7;
$custom-light: #7b88cd;
$custom-dark: #000000;

JSON

{
  "hex": "#315ab7",
  "rgb": {
    "r": 49,
    "g": 90,
    "b": 183
  },
  "hsl": {
    "h": 221.642,
    "s": 57.759,
    "l": 45.49
  },
  "oklch": {
    "l": 0.49102,
    "c": 0.15454,
    "h": 263.8
  },
  "luminance": 0.11384
}

Semantic roles & 50–950 ramp

primary

#315AB7

secondary

#C8B17C

accent

#B247E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #315AB7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →